Rheostatic support.



N0. 673,392. Patented May 7, I90l. J. P. ERIE.

RHEOSTATIO SUPPORT. (Application filed Sept. 13, 1900.

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J. P. ERIE;

RHEOSTATIC SUPPBRT.

(A' mmon filed Sept. 13, 1960.) (No Model.) 2 Shouts-Shoot 2.

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OFFICE- f "I JAMES PHILIP-Earner n iw roamn. Ass enon TO THE ERIE EXPLO- RATIONCOMPANY;OFISAME'IPLAIOEANDDOVERQDELAWARE.

' SPECIFICATION formingpart of Letters Patent'N0.-673,'392, dated May x1901. f

' Application filed $epten1berl3, 1900. smart. 29,928. on. model.)

' To all whomit may con/ 61 by their arrangements with relation to one 'Be it known that I, JAMES PHILIP ERIE, a another or with surrounding objects. 1 With citizen of the United States, residing in the this general statement I will now describe the city, county, and State of New York, have inconstruction illustrated in the drawings, and '5 vented certain new and useful Improvements Iwill' state that the strip orcore may be made 55 in Rheostatic Supports,'of which the followof any suitable material, but preferably of ing is a specification. porcelain moldedinthe form shown.

-Myinventionrelates to rheostatic supports, Thestrip or corecomprises a body portion and has for its object to providea cheap, sim- 1, which is preferably rectangular in. shape,

ple, and effective support adapted to be used and it may be of any desired; length, width, 60

' in connection with rheostats and the like; or thickness, and its edges '2 3 are preferably and the invention consists inan insulator square, althoughthey may be rounded,asin strip or core, constituting the support for the dicated at 3 in Fig. 5. a electric conductor, embodying the features Arranged longitudinally of the strip on one.

of construction and arrangement and adapted orboth sides, and preferably both, are one 65 to be assembled in the manner hereinafter or more rows of projections 4, one being shown more fully set forth. in the drawings, as this is the preferred form,

Referring to the accompanying drawings, and these projections are properly spaced to Figure l is a perspective viewof the preferred form recesses 5 to receive the conductor, and

form or embodiment of my invention. Fig. these recesses of course will be of a width and 70 2 is a side View. Fig. 3 is an edge view; Fig. the projections also, according to the size of 4, an end viewy'Fig. 5, a horizontal section. the conductor or wire intended to be used and Figs. 6 to 9 are views showing ways of comthe number of turns of the conductor to be bining or assembling the cores or strips. i applied to the core. These projections may In the construction of electric rheostats and be of any shape; but preferably they are an- 75 similar devices it is desirable to provide a gular projections, as indicated at 4 in Fig. 3. suitable insulator strip or core upon which One end of the body portion is provided with the conductor maybe mounted and secured, what Iterm a footpiece 6, having side exand it is one of the principal objects of my. tensions 7 7 and edge extensions .8 8 and present invention to provide such a strip or one of these edge extensions, as 8, is provided 80 core and one in which the conductor can be with a tongue, as 9, and the other, as S is securely held, so that the parts of the conprovided with a groove, as 9. The side exductor will not touch each other, but will be tensions are also provided with grooves, as held at proper intervals fromeach other, and '10 10, which in the present instance are so that the conductor will not be liable to conshown as V-shaped and as arranged adjacent 8 5 tact with extraneous devices in connection to the projections 4, and preferably I arrange with which the core may be used; and it is two grooves in each extension, as 10 and 10 further an important object of myinvention and 10 and 10. The object of the tongue to provide what may be called a standard and grooves on the footpiece is to aid in asstrip or core so constructed and arranged sembling the units or strips, as hereinafter 9o that it is adapted to be assembled in various set forth, and the object of the grooves 10 to relations in making up the desired quantity 10 is tofurnish a passage for the wire or conof resistance or a desired-sized rheostat, and ductor, so that it shall be within the compass I for this purpose I-have made a core, which of the strip. The footpiece is also provided may be termed a unit-core, having the with a recess 11, (best shown in-Fig. 4,) and, 5

characteristics above set forth and adapted further, it is provided with a numberof transto be assembled in many practical relations, verse openings 12. The object of. therecess so that any desired number of unitsmay be is to receive an extension on the upperend used in the most compact manner and withof another unit, as hereinafter described, and

out danger of interference with'the conductor the purpose of the openings 12 is .to either re- I00 "sions'are" provided "with, grooves 179a and the edge or face of this'extension is'pref erably corrugated, as .at 18 to expose the openings 12 when twoof the units are placed 'together end to end Fig.7. r

In actual'praotice when the units or strips are'molded of course each unit or strip is made integral in all its parts, .and thatis the preferred form, although, of course,"the parts could beunade separately and; secured to: gether in any well-known way." I i: Such being the'con-structionofth core as a u ni.t,it is evident that the units can be used separately or that they can be combined and as clearly shown in and assembled in various ways and relations,

so that a'rheostat or similar device of any lde- 3 illustrated various'ways' of arranging them sufficient to enable those skilledin the art to use the same. Thus in- Fig.6 'I-have shown a bottom view of three units arranged in. the

seen that the tongues '9 e 9 of the adjacent strips.

In Fig. 7 I have shown a partial view of two units arranged end to end, and it Will be seen that the extension 18 fits into the recess 11 of the adjacent strip, and thegrooves 10 10 are so related that the ends of the conductors on the unitsmay be united.

In Fig. 8 I have shown an end view of two units placed side to side, and in Fig. 9 I have shown four units placed in rows of two.

It will be evident that these arrangements may be multiplied and any desired number of units assembled in proper relation to each other and that they will occupy the least possible space and that the side and edge extensions of the head and foot pieces of one unit will rest upon the similar extensions of ngage the grooves the other or others and under all conditions the conductor will be properly insulated Furthermore, if any one or more of these units are inclosed in a case the side and edgef extensions as well as the projections on the sides of the body will serve to support the case and keep it from coming in contact with tensions 15 15,-one ofTthez edge jextensio'ns bei g 1' p o d d wi n fi fi nd; he. other with a-groovello f, and thefside ..e'xte f si mil'ar 'to the groo es "10% 10%; Th heads pie'cei13 also providedgwithjan extension 18 of ashape to fittherecessllin'thefootpiece,'

e strip or sired size can readily bemade, and 'I have same plane or edge to edge, and'it will-be.

op Q ner q king p aid "amb e -1 f p p v the fextensionsan'di -;proje'otion may =Ebef1vari ed to suit different" condition Iithout avoiding-the spirit of my I invention. It1.Wil1 f3,lS Q' b6 understood that" whilefI have'show'n-the" core orfstrip as used in connection: with a'rheostat .it ma y of course be used in connectionv with other dev 8o j vices to which the same is adapted without: I departing from the invention. 1

.What I-claim'is'e iz try-*5 -1 :1

I '1. j Anxinsu lating core orrsupport; for 'elec- I E tric conductors comprisinga body-portion pro; 1 vided with interlocking portions-whereby a core isadapted to interlock with a similar core, substantially as'described. j f v2. An insulating core orsupport for electric cond uctorscomprising a body portion-pro- .vided with a foot and head'pieeehaving side i and edge extensions, substantially'as described;

An insulating core or support forv elec- I tric conductors comprisingabodyportionprm vided with a foot and head-piece having side and edge exten'sions providedwitha tongue and groove, substantially as described. a

' 4. An insulating core or support for'elec: I V tricconductorscomprisingabodyportion pro-- videdwith a foot and head-piece having'side extensions provided with grooves, substantially as set forth. y 7 1 l 5. An insulatingcore or support for electric conductorscomprising abody portion providedwith a foot and head piece having side extensions provided with grooves, and edge extensions provided with a tongue and groove, substantially as described. 7

6. An insulating core or support for electric conductors comprisinga body'portion provided with a foot and head piece, one having a recess in its end and the other an extension adapted to fit such a recess, substantially as described. I

7. An insulating core or support for electric conductors com prisinga body portion pro: vided with-a foot and head piece, one having a recess and openings in its end and the other having an'extension with a corrugated face, substantially as described.

8. Ah insulating core or support for electric conductors comprisinga body portion provided with a foot and headpiece and having projections on its sides, substantially as described. 1

9. An insulating core or support for electric conductors comprising a body portion provided with, a foot and head piece having side and edge extensions provided with interlocking portions, and having projections on its sides between the head and foot pieces, substantially as described.

10. An electric rheostat, comprising a plu- I rality of insulating-stripseach strip compris i In testimony whereof I have signed my ing a body portion andj having head and foot, name to this specification inthe presence of extensions and providedw'ith interlocking two subscribing Witnesses.

portions, whereby the". interlocking portions 5 of the separate strips may'engage each other Witnesses:

Y to form a rheost-at embodying a, plurality of j H. M. GILLMAN, Jn,

insulating-strips,'snbstantially asdescribed. s CLARENCE DUVALL.

JAMES PHILIP ERIE. 

